WO1999022283A3 - Electronic temperature controller, particularly for refrigeration appliances - Google Patents

Electronic temperature controller, particularly for refrigeration appliances Download PDF

Info

Publication number
WO1999022283A3
WO1999022283A3 PCT/DK1998/000456 DK9800456W WO9922283A3 WO 1999022283 A3 WO1999022283 A3 WO 1999022283A3 DK 9800456 W DK9800456 W DK 9800456W WO 9922283 A3 WO9922283 A3 WO 9922283A3
Authority
WO
WIPO (PCT)
Prior art keywords
mains
electronic circuit
temperature controller
refrigeration appliances
electronic temperature
Prior art date
Application number
PCT/DK1998/000456
Other languages
French (fr)
Other versions
WO1999022283A2 (en
Inventor
Hans Erik Fogh
Axel V Schoenwandt
Original Assignee
Danfoss As
Hans Erik Fogh
Axel V Schoenwandt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danfoss As, Hans Erik Fogh, Axel V Schoenwandt filed Critical Danfoss As
Priority to EP98949956A priority Critical patent/EP1025475A2/en
Priority to AU96217/98A priority patent/AU9621798A/en
Priority to US09/529,625 priority patent/US6354508B1/en
Publication of WO1999022283A2 publication Critical patent/WO1999022283A2/en
Publication of WO1999022283A3 publication Critical patent/WO1999022283A3/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Sensing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Control Of Temperature (AREA)

Abstract

The invention concerns an electronic temperature controller, particularly for refrigeration appliances, with mains connections (3, 4) and an electronic circuit (1) having a power supply (7), a control unit and measuring and setting elements (9, 10, 11). The mains connections (3, 4) are connected with the power suppy (7) via protective impedances (5, 6) consisting of at least two single impedances connected in series, and the electronic circuit is dimensioned for an operating current of maximum 0.35 mA (peak value) when connected to an AC mains and maximum 1 mA when connected to a DC mains. These values are doubled, when the electronic circuit has an earthing connection. This gives safety for the operator through shock-proof protection, which can be achieved at low cost and with small dimensions.
PCT/DK1998/000456 1997-10-25 1998-10-20 Electronic temperature controller, particularly for refrigeration appliances WO1999022283A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98949956A EP1025475A2 (en) 1997-10-25 1998-10-20 Electronic temperature controller, particularly for refrigeration appliances
AU96217/98A AU9621798A (en) 1997-10-25 1998-10-20 Electronic temperature controller, particularly for refrigeration appliances
US09/529,625 US6354508B1 (en) 1997-10-25 1998-10-20 Electronic temperature controller, particularly for refrigeration appliances

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19747256A DE19747256C1 (en) 1997-10-25 1997-10-25 Electronic temperature regulator for domestic refrigeration appliance
DE19747256.7 1997-10-25

Publications (2)

Publication Number Publication Date
WO1999022283A2 WO1999022283A2 (en) 1999-05-06
WO1999022283A3 true WO1999022283A3 (en) 1999-07-22

Family

ID=7846657

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1998/000456 WO1999022283A2 (en) 1997-10-25 1998-10-20 Electronic temperature controller, particularly for refrigeration appliances

Country Status (5)

Country Link
US (1) US6354508B1 (en)
EP (1) EP1025475A2 (en)
AU (1) AU9621798A (en)
DE (1) DE19747256C1 (en)
WO (1) WO1999022283A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962728A1 (en) * 1999-12-23 2001-06-28 Grundfos As Cooler
EP1178271B1 (en) * 2000-08-02 2006-06-07 Siebe Appliance Controls GmbH Electronic control device for cooling or freezing apparatus
ITUD20050136A1 (en) * 2005-08-25 2007-02-26 Criotherm Engineering Srl ELECTRONIC DEVICE FOR CHECKING A FLUID CONDITIONING EQUIPMENT
US7561397B2 (en) * 2006-03-31 2009-07-14 RightLite LLC Limited current circuit for electro-luminescent lamp inverter
DE102008005663A1 (en) * 2008-01-17 2009-07-30 Siemens Aktiengesellschaft Device for measuring electrical alternating voltage, has input voltage divisors that are connected with associated voltage measuring device by given connecting impendence
CN106679322B (en) * 2016-12-22 2019-05-31 青岛海尔股份有限公司 The method that mechanical knob controls refrigerator operation
CA189754S (en) * 2019-04-05 2020-12-10 Eliwell Controls S R L Con Unico Socio Temperature controller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2445172A1 (en) * 1974-09-21 1976-04-01 Merten Kg Pulsotronic Electronic thermostat for compression refrigerator - with delay before switching on again to allow reduction in pressure of refrigerant
GB2136643A (en) * 1983-03-17 1984-09-19 Diehl Gmbh & Co A transformerless power pack
US4631512A (en) * 1983-06-03 1986-12-23 Victor Company Of Japan, Ltd. Voltage dividing resistor device
US5293148A (en) * 1992-07-13 1994-03-08 Honeywell Inc. High resolution resistor ladder network with reduced number of resistor elements

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535053A (en) * 1968-07-25 1970-10-20 Borg Warner Control system for centrifugal compressor
DE2106043A1 (en) * 1970-03-11 1971-09-30 Naniwa Sangyo Co., Ltd., Osaka (Japan) Temperature control device
US3691782A (en) * 1970-06-30 1972-09-19 Walter U Holzer Refrigerator thermostat and arrangement thereof
DE2841783A1 (en) * 1978-09-26 1980-04-03 Bosch Siemens Hausgeraete ADJUSTABLE ELECTRONIC TEMPERATURE CONTROLLER, ESPECIALLY FOR FREEZER UNITS OR THE LIKE.
US4283921A (en) * 1980-04-25 1981-08-18 Electromedics, Inc. Control and alarm system for freezer case temperature
DE3141736C2 (en) * 1981-10-21 1984-01-19 Danfoss A/S, 6430 Nordborg "Temperature control device for a system, in particular a refrigeration system"
KR880000764A (en) * 1986-06-14 1988-03-29 우시구보 도모아끼 Refrigerator temperature control
KR880000758A (en) * 1986-06-14 1988-03-29 우시구보 도모아끼 Temperature controller for chiller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2445172A1 (en) * 1974-09-21 1976-04-01 Merten Kg Pulsotronic Electronic thermostat for compression refrigerator - with delay before switching on again to allow reduction in pressure of refrigerant
GB2136643A (en) * 1983-03-17 1984-09-19 Diehl Gmbh & Co A transformerless power pack
US4631512A (en) * 1983-06-03 1986-12-23 Victor Company Of Japan, Ltd. Voltage dividing resistor device
US5293148A (en) * 1992-07-13 1994-03-08 Honeywell Inc. High resolution resistor ladder network with reduced number of resistor elements

Also Published As

Publication number Publication date
AU9621798A (en) 1999-05-17
EP1025475A2 (en) 2000-08-09
US6354508B1 (en) 2002-03-12
WO1999022283A2 (en) 1999-05-06
DE19747256C1 (en) 1999-02-11

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